<template>
  <!-- 头部部分 -->
  <header class="header">
    <h1>todos</h1>
    <input v-model="todoname" @keyup.enter='add' class="new-todo" placeholder="请输入任务名称" autofocus />
  </header>
</template>

<script>
export default {
  data () {
    return {
      todoname: ''
    }
  },
  methods: {
add(){
  if(this.todoname.trim()==='') return
  this.$emit('add',this.todoname)
  this.todoname =''
}
  }
}
</script>

<style></style>
